name: Cleanup Environment
on: [delete]

jobs:
  cleanup:
    runs-on: ubuntu-latest
    if: github.event.ref_type == 'branch'

    steps:
      - name: Prepare Variables
        run: |
          REPO_LOWER=$(echo "${{ gitea.repository }}" | cut -d'/' -f2 | tr '[:upper:]' '[:lower:]')
          BRANCH_NAME=${{ github.event.ref }}
          BRANCH_LOWER=$(echo "$BRANCH_NAME" | tr '[:upper:]' '[:lower:]' | sed 's/[^a-z0-9-]/-/g')
          TARGET_NS="${REPO_LOWER}-${BRANCH_LOWER}"
          echo "TARGET_NS=$TARGET_NS" >> $GITHUB_ENV

      - name: Protect Main
        if: env.TARGET_NS == 'escape-teacher-main' || env.TARGET_NS == 'escape-teacher-master'
        run: |
          echo "❌ Main darf nicht gelöscht werden!"
          exit 1

      - name: Setup Kubectl
        run: |
          curl -LO "https://dl.k8s.io/release/$(curl -L -s https://dl.k8s.io/release/stable.txt)/bin/linux/amd64/kubectl"
          chmod +x kubectl
          mv kubectl /usr/local/bin/
          mkdir -p $HOME/.kube
          echo "${{ secrets.KUBE_CONFIG }}" > $HOME/.kube/config
          chmod 600 $HOME/.kube/config
          sed -i 's|server: https://.*:6443|server: https://kubernetes.default.svc:443|g' $HOME/.kube/config

      - name: Delete Namespace
        run: |
          echo "🗑️ Lösche Namespace: ${{ env.TARGET_NS }}"
          kubectl delete namespace ${{ env.TARGET_NS }} --ignore-not-found --wait=false